In a mixing glass, add the strawberries, basil and lime. Muddle them thoroughly to release the juices and oils. In a small bowl, mix the honey or raw sugar with a little amount of tonic water (just enough to dilute it). When it has diluted, add to the mixing glass. Add the tonic water. Strain everything in 2 drinking glasses full of ice.
Garnish with more strawberries, basil & lime if using.